应用有限元软件MARC对在不同配合间隙率条件下工件受载出现的鼓形失稳现象进行了仿真;分析了芯模与工件的间隙率对旋压鼓形的影响规律,并通过旋压实验进行验证;从而为研究大径厚比,超薄壁筒形件制造技术提供理论指导。
Apply the finite element software MARC to simulate the drum instability phenomenon of loading workpiece under the condition of different clearance ratio; Analyse the influence law of clearance ratio between mandrel and workpiece on the drum instability and verify it by experiment, so as to provide theory instruction for researching the manufacturing technology of cylindrieal workpiece with extra thin-wall and height diameter/thickness ratio.